Flax is a kind of worldwide fiber and oil crops, and it has a very important role in economic crop production in the world. With the development of molecular biology techniques, the research of flax molecular level ha...Flax is a kind of worldwide fiber and oil crops, and it has a very important role in economic crop production in the world. With the development of molecular biology techniques, the research of flax molecular level has a very big breakthrough. But, flax molecular biology researches are less reported due to the later starting. This paper summarized the latest research progress of molecular biology of flax, including molecular marker technology, construction of genetic map, gene engineering and omits researches, in order to provide the reference to understand the development and research status for flax molecular breeding researchers.展开更多
Part of wild flax species and cultivated species were used as materials for optimizing SRAP-PCR reaction system, and concentration gradient test was made for all factors in order to select and establish the optimal pr...Part of wild flax species and cultivated species were used as materials for optimizing SRAP-PCR reaction system, and concentration gradient test was made for all factors in order to select and establish the optimal program and system fitting for amplifying high diversity, good reproducible and clear bands. This program and system could well meet the requirement of flax SRAP and prove that SRAP marker was feasible for researching genetic polymorphism of flax.展开更多
The effecf of potassium fertilizer on Nitrate Reductase Activity (NRA), Hydrogen Peroxide Activity (HPA),Peroxidase Activity (PODA) in the fiber flax was studied on campus of NEAU in 1995 and 1996. The result showed t...The effecf of potassium fertilizer on Nitrate Reductase Activity (NRA), Hydrogen Peroxide Activity (HPA),Peroxidase Activity (PODA) in the fiber flax was studied on campus of NEAU in 1995 and 1996. The result showed that the changing of NRA,HPA and PODA was same in the period from the quick growth to blossom period in the different treamets. NAR and HPA was the highest in the quick growth period then cut down gradually,and PODA was just right contrary. The other side,it was obviously different to NRA, HPA and PODA in the different Potassium levels. NRA and HPA presented the highest enzyme activity in the trea- ment of K2O 22.5kg·ha-1 PODA in creased gradually with the increase of Potassium. PODA was the high- est in the treament of K2O 67.5kg·ha-1. But all of the Potassium treatments was higher than CK whatever NRA,HPA and PODA. Potassium may enhanced the primary stem yield and fiber percentage and lead to fiber yield rising.展开更多
基金Supported by the National Natural Science Foundation of China(31401451)National Agro-industry Technology Research System for Crops of Bast and Leaf Fiber(CARS-19-S03)
文摘Flax is a kind of worldwide fiber and oil crops, and it has a very important role in economic crop production in the world. With the development of molecular biology techniques, the research of flax molecular level has a very big breakthrough. But, flax molecular biology researches are less reported due to the later starting. This paper summarized the latest research progress of molecular biology of flax, including molecular marker technology, construction of genetic map, gene engineering and omits researches, in order to provide the reference to understand the development and research status for flax molecular breeding researchers.
文摘Part of wild flax species and cultivated species were used as materials for optimizing SRAP-PCR reaction system, and concentration gradient test was made for all factors in order to select and establish the optimal program and system fitting for amplifying high diversity, good reproducible and clear bands. This program and system could well meet the requirement of flax SRAP and prove that SRAP marker was feasible for researching genetic polymorphism of flax.
文摘The effecf of potassium fertilizer on Nitrate Reductase Activity (NRA), Hydrogen Peroxide Activity (HPA),Peroxidase Activity (PODA) in the fiber flax was studied on campus of NEAU in 1995 and 1996. The result showed that the changing of NRA,HPA and PODA was same in the period from the quick growth to blossom period in the different treamets. NAR and HPA was the highest in the quick growth period then cut down gradually,and PODA was just right contrary. The other side,it was obviously different to NRA, HPA and PODA in the different Potassium levels. NRA and HPA presented the highest enzyme activity in the trea- ment of K2O 22.5kg·ha-1 PODA in creased gradually with the increase of Potassium. PODA was the high- est in the treament of K2O 67.5kg·ha-1. But all of the Potassium treatments was higher than CK whatever NRA,HPA and PODA. Potassium may enhanced the primary stem yield and fiber percentage and lead to fiber yield rising.
